Understanding tapply and Aggregate in R: A Deep Dive into Performance and Best Practices

Grouping and Aggregation in R: Best Practices for Efficient Data Analysis

Mastering the Formula Argument in Aggregate Functions: A Crucial Tool for Data Analysis in R

Aggregating Rows with Shared Values and Simultaneously Choosing a Value in a Separate Column

Understanding Aggregate Functions in R: A Deep Dive into FUN=max